State profile · Above median Poor share

Pennsylvania bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Pennsylvania.

23,299
Public bridges
34.0%
Good condition
12.6%
Poor condition

Pennsylvania holds 23,299 public highway bridges (#8 of 52 by inventory) with a 12.58% Poor share (#7 of 52 by Poor share).

That is 12.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 46 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

23,299

Public highway bridges in Pennsylvania

Good Condition

34.0%

7,915 bridges rated 7-9

-16.0pp vs 50% benchmark

Poor Condition

12.6%

2,932 bridges whose lowest applicable component is rated 0-4

5.1pp vs national avg 7.5%

Pennsylvania vs national bridge condition

Pennsylvania - Good condition share 34.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania - Poor-condition share 41.9%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Pennsylvania in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Pennsylvania vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

23,299 8th of 54 higher than 46 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Pennsylvania

The highlighted point is Pennsylvania: 23,299 bridges and 12.58% in Poor condition, rank #46 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Pennsylvania on that same Poor-share ordering:

  • Michigan: 11,371 bridges · 11.27% Poor
  • Louisiana: 12,698 bridges · 11.48% Poor
  • Pennsylvania: 23,299 bridges · 12.58% Poor
  • Guam: 47 bridges · 12.77% Poor
  • Puerto Rico: 2,385 bridges · 13.92% Poor

The full national sortable table lives on the rankings page.

Material families in Pennsylvania

Exclusive FHWA material families across all 23,299 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Pennsylvania’s inventory

State agency holds 70.3% of the 23,299 public highway bridges filed under Pennsylvania in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Pennsylvania’s bridges were built

Pre-1950 construction accounts for 24.8% of the 23,299 bridges with a recorded original year in Pennsylvania. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Pennsylvania34%53.4%12.6%GoodFairPoor
Bridge inventory deck-condition mix - Pennsylvania (FHWA NBI)

Counties (67)

Adams 254 Allegheny 1294 Armstrong 263 Beaver 299 Bedford 417 Berks 667 Blair 338 Bradford 399 Bucks 699 Butler 378 Cambria 284 Cameron 62 Carbon 134 Centre 367 Chester 680 Clarion 172 Clearfield 292 Clinton 212 Columbia 271 Crawford 399 Cumberland 348 Dauphin 449 Delaware 387 Elk 127 Erie 442 Fayette 422 Forest 71 Franklin 294 Fulton 159 Greene 306 Huntingdon 238 Indiana 301 Jefferson 202 Juniata 169 Lackawanna 363 Lancaster 801 Lawrence 265 Lebanon 228 Lehigh 381 Luzerne 457 Lycoming 482 McKean 226 Mercer 438 Mifflin 196 Monroe 315 Montgomery 828 Montour 108 Northampton 356 Northumberland 299 Perry 183 Philadelphia 585 Pike 158 Potter 207 Schuylkill 368 Snyder 161 Somerset 454 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 620 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Pennsylvania on the same metric.

MI

Michigan

11.27% top marginal rate
Structure
Progressive
Burden @ $100K
$11,371

LA

Louisiana

11.48% top marginal rate
Structure
Progressive
Burden @ $100K
$12,698
Selected

PA

Pennsylvania

12.58% top marginal rate
Structure
Progressive
Burden @ $100K
$23,299

GU

Guam

12.77% top marginal rate
Structure
Progressive
Burden @ $100K
$47

PR

Puerto Rico

13.92% top marginal rate
Structure
Progressive
Burden @ $100K
$2,385

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

BLVD OF THE ALLIES

Poor

Over: CSX RR & BIKE TRAIL

005 Charles Anderson Brid, Allegheny, PA

Built 1938 Load: 0.0 t ADT: 21,211

TIMBERLAND AV

Poor

Over: SAW MILL RUN CREEK

113 Timberland Ave, Allegheny, PA

Built 1909 Load: 0.0 t ADT: 30

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25 FROM NORTH AV, Allegheny, PA

Built 1911 Load: 0.0 t ADT: 50

OLD WILLIAMPENN HW

Poor

Over: THOMPSON RUN CREEK

446002 OLD WM PENN HGWY, Allegheny, PA

Built 1900 Load: 0.0 t ADT: 300

FALLSTON BR

Poor

Over: BEAVER RIVER

004026 FALLSTON BRIDGE, Beaver, PA

Built 1884 Load: 0.0 t ADT: 6,523

ELEVENTH AVENUE ET

Poor

Over: BLOCKHOUSE RUN

423005 100 YD /13 ST INT, Beaver, PA

Built 1925 Load: 0.0 t

All Bridges in Pennsylvania

PA 31

Good

Over: KIMBERLY RUN

2.7 MI.E.OF SOMERSEST, Somerset, PA

Built 2001 Load: 99.8 t ADT: 3,931

S.R. 328

Good

Over: ALDER RUN

2 MI. W. OF MILLERTON, Tioga, PA

Built 2002 Load: 99.8 t ADT: 1,624

SR 219-US 219

Good

Over: PENTZ RUN

DUBOIS, Clearfield, PA

Built 2002 Load: 99.8 t ADT: 12,542

SR 8002 RAMP S

Good

Over: HORNING RUN

ARCH ROCK, Juniata, PA

Built 2003 Load: 99.8 t ADT: 340

SR 49

Good

Over: TR TO COWANESQUE RIVER

1.5 MI EAST OF ELKLAND, Tioga, PA

Built 2005 Load: 99.8 t ADT: 4,020

TELEGRAPH ROAD

Good

Over: BROAD RUN

2MI.TO LR 15080 30G13, Chester, PA

Built 2005 Load: 99.8 t ADT: 1,838

SOUTH OAKLAND

Good

Over: OVER US 62

SOUTH OAKLAND AVE SHARON, Mercer, PA

Built 2006 Load: 99.8 t ADT: 3,127

BRIDGE 2323

Good

Over: OVER HOGBACK RUN

HOGBACK RD. HERMITAGE, Mercer, PA

Built 2007 Load: 99.8 t ADT: 177

ENGLE ROAD

Good

Over: SIX MILE RUN

200NORTH OF SR 68, Beaver, PA

Built 2009 Load: 99.8 t ADT: 985

NEWPORT PIKE

Good

Over: KNIGHTS RUN

1.5 MI. NW RTE 10 3688A5, Chester, PA

Built 2012 Load: 99.8 t ADT: 10,974

SR 426 Hare Ck. R

Good

Over: OVER HARE CREEK TRIB

WAYNE TWP, Erie, PA

Built 2010 Load: 99.8 t ADT: 891

SR 4011

Good

Over: STEAM VALLEY RUN

3 MI NORTH OF TROUT RUN, Lycoming, PA

Built 2010 Load: 99.8 t ADT: 225

Summit Dr.

Good

Over: Pine Creek

93 E from Wexford Run Rd, Allegheny, PA

Built 1975 Load: 99.8 t ADT: 100

School Road

Good

Over: Tri. to Neshaminy Creek

.5 Mi SEPA 263 3035H8, Bucks, PA

Built 2017 Load: 99.8 t ADT: 300

ROCKWELL AVENUE

Good

Over: LEGGETTS CREEK

AT WILLIAM ST INTERSECT, Lackawanna, PA

Built 2018 Load: 99.8 t ADT: 1,230

DUNHAM DRIVE

Good

Over: LITTLE ROARING BROOK

600 FT NW OF TIGUE STREET, Lackawanna, PA

Built 1997 Load: 99.8 t ADT: 500

T-438

Good

Over: Level Branch

0.3 MI N OF CAMPBELLVILLE, Sullivan, PA

Built 2020 Load: 99.8 t ADT: 50

BLVD OF THE ALLIES

Poor

Over: CSX RR & BIKE TRAIL

005 Charles Anderson Brid, Allegheny, PA

Built 1938 Load: 0.0 t ADT: 21,211

TIMBERLAND AV

Poor

Over: SAW MILL RUN CREEK

113 Timberland Ave, Allegheny, PA

Built 1909 Load: 0.0 t ADT: 30

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25 FROM NORTH AV, Allegheny, PA

Built 1911 Load: 0.0 t ADT: 50

OLD WILLIAMPENN HW

Poor

Over: THOMPSON RUN CREEK

446002 OLD WM PENN HGWY, Allegheny, PA

Built 1900 Load: 0.0 t ADT: 300

FALLSTON BR

Poor

Over: BEAVER RIVER

004026 FALLSTON BRIDGE, Beaver, PA

Built 1884 Load: 0.0 t ADT: 6,523

ELEVENTH AVENUE ET

Poor

Over: BLOCKHOUSE RUN

423005 100 YD /13 ST INT, Beaver, PA

Built 1925 Load: 0.0 t

T-525 HAMMER ROAD

Poor

Over: ADAMS RUN

3 MI.NE.OF SCHELLSBURG, Bedford, PA

Built 1987 Load: 0.0 t ADT: 46

T-503 MORGART ROAD

Poor

Over: RYOT RUN

RYOT, Bedford, PA

Built 1950 Load: 0.0 t

1003/06216/T-960

Poor

Over: LAKE ONTELAUNEE

LK.ONTELAUNEE W.SHORE DR., Berks, PA

Built 1927 Load: 0.0 t ADT: 366

GEBHART SCHOOL RD

Poor

Over: ALLEGHENY CREEK

NEAR HARTZ STORE ROAD, Berks, PA

Built 1981 Load: 0.0 t ADT: 450

CALCIUM ROAD

Poor

Over: NORFOLK SOUTHERN (0342)

WEST OF MAIDEN CREEK, Berks, PA

Built 1920 Load: 0.0 t ADT: 200

BOWERS ROAD

Poor

Over: MAIDEN CREEK

NE OF BERKLEY, Berks, PA

Built 1883 Load: 0.0 t ADT: 868

SETON ROAD

Poor

Over: ALLEGHENY CREEK

200 FT. E. OF ROUTE 10, Berks, PA

Built 1970 Load: 0.0 t ADT: 200

PENN AVENUE

Poor

Over: MAIDEN CREEK

PENN AVENUE, Berks, PA

Built 1922 Load: 0.0 t ADT: 100

T-109 (TWP. BR.#4)

Poor

Over: SATTERLEE CREEK

.65 Mi. NE OF EAST ATHENS, Bradford, PA

Built 1930 Load: 0.0 t ADT: 100

T-821 (TWP BR #1)

Poor

Over: BECKWITH CREEK

SOUTH END OF MOSHERVILLE, Bradford, PA

Built 1960 Load: 0.0 t ADT: 75

T-902 (TWP. BR #1)

Poor

Over: WAPPASENING CREEK

1 MI. NW OF WEST WARREN, Bradford, PA

Built 1912 Load: 0.0 t ADT: 10

NURSERY ROAD

Poor

Over: UNAMI CREEK

3 MI SE SR663 ADC 2806-D8, Bucks, PA

Built 1891 Load: 0.0 t ADT: 100

MILL ROAD

Poor

Over: NESHAMINY CREEK

1 Mi E SR263 ADC 3035J7, Bucks, PA

Built 1888 Load: 0.0 t ADT: 50

TEBOLA BEANS BRIDG

Poor

Over: DELAWARE CANAL

SE OF TAYLORSVILLE, Bucks, PA

Built 1832 Load: 0.0 t ADT: 40

WATERWORKS APT RD

Poor

Over: DELAWARE CANAL

AT SR 32 INTERSECT, Bucks, PA

Built 1830 Load: 0.0 t

CANAL LANE

Poor

Over: DELAWARE CANAL

450 FT SW OF SR 32, Bucks, PA

Built 1832 Load: 0.0 t ADT: 25

OVERPECKS DRIVE

Poor

Over: DELAWARE CANAL

NARROWSVILLE, Bucks, PA

Built 1984 Load: 0.0 t ADT: 2

SR 2002(APPL.1461)

Poor

Over: LITTLE AQUASHICOLA CREEK

PALMERTON/AQUASHICOLA, Carbon, PA

Built 1922 Load: 0.0 t ADT: 10,968

GRIST MILL RD

Poor

Over: QUAKAKE CREEK

GRIST MILL RD N OF SR4010, Carbon, PA

Built 1913 Load: 0.0 t ADT: 100

STONEY CK RD

Poor

Over: STONEY CREEK

W.OF SR 903 NR.CHRISTMANS, Carbon, PA

Built 1910 Load: 0.0 t

T942 L COLEVLLE RD

Poor

Over: BUFFALO RUN

900 FT SW OF SR 3006, Centre, PA

Built 1965 Load: 0.0 t ADT: 500

WEST CEDARVILLE RD

Poor

Over: ECKERS RUN

N COVENTRY TWP 3138-B4, Chester, PA

Built 1929 Load: 0.0 t ADT: 316

CALVARY ROAD

Poor

Over: TWEED CREEK

CALVARY ROAD 3906-G5, Chester, PA

Built 1975 Load: 0.0 t ADT: 280

EAST BRIDGE STREET

Poor

Over: AMTRAK RAILROAD

PARKESBURG BORO 3578-B7, Chester, PA

Built 1903 Load: 0.0 t

WEST BRIDGE STREET

Poor

Over: AMTRAK

BOROUGH PARKSBURG 3578-B7, Chester, PA

Built 1903 Load: 0.0 t

T-345 MEHRTEN RD

Poor

Over: BEAVER CREEK

2.9 mi SW int w/ SR 208, Clarion, PA

Built 1950 Load: 0.0 t ADT: 50

T-566 KELLYTOWN RD

Poor

Over: CLEARFIELD CREEK

1.5 MI EAST OF SR 453, Clearfield, PA

Built 1883 Load: 0.0 t

Showing 20,351-20,400 of 23,299 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

What to do with this

Use Pennsylvania's inventory picture to drill to a county or a specific span.

  • Browse counties in Pennsylvania and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Pennsylvania Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.